4=-3x^2=15

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Solution for 4=-3x^2=15 equation: 



4=-3x^2=15

We move all terms to the left:

4-(-3x^2)=0

We get rid of parentheses

3x^2+4=0

a = 3; b = 0; c = +4;
Δ = b2-4ac
Δ = 02-4·3·4
Δ = -48
Delta is less than zero, so there is no solution for the equation

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